Corn-planter.



PATENTED JUNE 12, 1906.

L. B. WATERMAN.

CORN PLANTBR.

APPLICATION FILED APR.14,1906.

UNITED STATES PATENT OFFIOE.

LEWIS E. WATERMAN, OF ROCKFORD, ILLINOIS, ASSIGNOR TO EMERSON MANUFACTURING COMPANY, OF ROCKFORD, ILLINOIS, A CORPORA- TION OF ILLINOIS.

CORN-PLANTER.

Specification of Letters Patent.

Patented June 12, 1906.

Application filed April 14, 1906. Serial No. 311,792.

To all whom it may concern' Be it known that I, LEwIs E. 'WATERMAN,

a citizen of the United States, residing at Rockford, in the county of l/Vinnebago and State of Illinois, have invented certain new and useful Improvements in Corn-Planters, of which the following is a specification.

The object of this invention is to impart an intermittent rotary movement to the shaft, having a connection with the seed-dropping devices by the movement of the fork operated by a knotted check-wire.

In the accompanying drawings, Figure 1 is a plan view of a portion of a corn-planter embodying my improvements. Figs. 2, 3, and 4 are vertical transverse sections on dotted line a a, Fig. 1, showin the different positions of the clutch mec. anism. Fig. 5 is a transverse section of the shaft 6 and a vertical section through the clutch, and Fig. 6 is an isometrical representation of a toothed segment supported by the fork-shaft.

The planter in the main is of an old construction and is shown for the purpose that my improvements may be more clearly understood.

The bars 1 and 2 are supported by the runners or furrow-openers 3, (only one of which is shown.) The end bar or head 4 supports the wire rollers 5. A shaft 6 is supported in suitable bearings and is adapted to operate the seed-dropping mechanism contained in the seedbox 7 by ordinary gearing. The shaft 8 is supported in suitable bearings and has two forks 9 connected to it, (only one being shown.) To the shaft 6 is fixedly secured an outer casing 10, having an inwardly-extending hub 11. From the outer wall of this casing extend four radial lugs 12, spaced equidistant apart. To the bar 1 of the main frame is secured a bracket 13, to which is pivoted a dog 14, which is adapted to engage the projections 12, thereby preventing the outer casing from revolving backward. A spring holds the dog 14 in a yielding manner in order that the projections 12 may pass the dog. From the hub 11 extends an ear 16, to which is pivoted a pawl 17. Within the outer casing is located a cap portion 18, which has a hub 19 loosely mounted on the shaft 6. The inner face of this cap portion is formed with four projections 20, equally spaced apart and against which the pawl 17 is adapted to rest and which is held in a yielding manner by the spring 21. The outer surface of this cap portion is formed with a segmental toothed rack 22. To the shaft 8 is fixedly connected a toothed quadrant 23, having a projection 24 extending from its face next the cap portion 18.

Then the parts are in the position shown at Fig. 2, the fork is in the position shown at Fig. 1that is, it is ready to receive a button on a check-wireand the stop 25, extending from the cap portion, will engage the toothed quadrant 23, thereby preventing the further forward movement of the fork. Vhen the fork is moved by it engaging a button on the check-wire, the shaft 8 will be oscillated, carrying the toothed quadrant with it. When it has completed half its movement, the parts will be in the position shown at Fig. 3, and when it has completed its full backward movement the parts will be in the position shown at Fig. 4, in which position one of the projections 12 will-rest in contact with the toothed quadrant 23, and the projection 24 will rest in contact with the outer casing, thereby limiting the further movement of the fork. As the toothed quadrant is oscillated from the position shown at Fig. 2 to that shown at Fig. 4 the pawl 17, carried by the outer casing, will be in engagement with one of the projections 20 of the cap portion, and the movement of the cap portion will cause the outer casing to be turned a uarter of a revolution,which will also rotatet e shaft 6 a quarter of a revolution and cause the seeddropping mechanism to be operated. The fork will be returned to its starting or normal position in the usual manner, which will restore the toothed quadrant 23 and cap portion 18 to the position shown at Fig. 2. By this construction the movement imparted to the seed-dropping mechanism by the fork is positive, as is also the return movements, so that the seed-dropping mechanism will be moved the same each movement of the fork.

I claim as my invention 1. In a corn-planter, the combination of a shaft adapted to operate the seed-dropping mechanism, a fork, a shaft adapted to be oscillated by the fork, a connection between the shafts whereby the fork will impart an intermittent rotary movement to the shaft operating the seed-dropping mechanism, and stops limiting the oscillations of the forkshaft in both directions.

2. In a corn-planter, the combination of a shaft adapted to operate the seed-dropping mechanism, a fork, a shaft adapted to be oscillated by the fork, a connection between the shafts whereby the fork will impart an intermittent rotary movement to the shaft operating the seed-dropping mechanism, said connection formed with two stops which limit oscillations of the fork-shaft.

3. In a corn-planter, the combination of a shaft adapted to operate the seed-dropping mechanism, a fork, a shaft adapted to be oscillated by the fork, a gear-and-clutch connection between the shafts whereby the fork will impart an intermittent rotary movement to the shaft operating the seed-dropping mechanism, each gear-section formed with a stop which engages the other gear section.

4. In a cornplanter, the combination of a shaft adapted to operate the seed-dropping tions, a dog pivoted to a stationary support and adapted to engage the projections, a pawl carried by the casing, a cap portion pivotally mounted on the shaft having its inner face provided with a series 01' pro'ections and its outer face provided Wit a toothed quadrant and a stop, a fork, a shaft adapted to be oscillated by the fork, a toothed segment fixedly connected to the fork-shaft and meshing with the toothed quadrant, the toothed segment provided with a projection adapted to engage the casing.

LEWIS E. WVATERMAN.

Witnesses:

A. O. BEHEL, E. BEHEL. 

